1N4370A_T50A

Single Zener Diodes Overview

The onsemi 1N4370A_T50A is a silicon unidirectional Zener voltage regulator diode housed in the DO-35 axial leaded glass package. It provides a nominal Zener voltage of 2.4V with a tolerance of ±5%. The device supports a maximum power dissipation of 500mW and operates within an extended temperature range from -65°C to +200°C. Key electrical characteristics include a maximum dynamic impedance of 30 Ohms at 20mA test current, a maximum forward voltage of 1.5V at 200mA, and a reverse leakage current of 100µA at 1V.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via Zener breakdown mechanism for reference applications
• Features hermetically sealed glass construction for environmental protection
• Supports through-hole mounting using standard axial leads

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection stages
• Clamping applications

Single Zener Diodes Procurement Notes

Verify that the component matches the specific Fairchild Semiconductor datasheet specifications rather than generic equivalents. Confirm the presence of the correct cathode band marking and device code alignment. Ensure the procurement source adheres to authorized distribution channels to prevent counterfeit parts. Validate that the package type corresponds to the DO-35 glass case configuration.

Single Zener Diodes Selection Notes

Select this component when a precise 2.4V reference is required in a through-hole design. Consider the low dynamic impedance for stability under varying load conditions. Evaluate the high operating temperature limit for harsh environments. Compare against the broader 1N4370A series if alternative voltage ratings are needed.

Single Zener Diodes Part Context

This part belongs to the 1N4370A through 1N4372A and 1N746A through 1N759A family of Zener diodes manufactured by Fairchild Semiconductor. These devices share common packaging and absolute maximum rating profiles while differing primarily in their nominal Zener voltage values. The family utilizes a consistent DO-35 glass case structure.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same family include the 1N746A, which shares identical electrical parameters and pinout compatibility.